Buyer's Guide to Pick the Best LLM Gateway in 2026
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TL;DR: An LLM gateway sits between your application and LLM providers, handling routing, failover, cost controls, and observability. I tested five gateways against ten evaluation criteria. Bifrost won on latency and governance. LiteLLM wins on provider coverage. Kong and Cloudflare suit different enterprise needs. Here is the full breakdown. What Is an LLM Gateway? An LLM gateway is a reverse proxy purpose-built for LLM API traffic. It normalises requests across providers like OpenAI